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Flue gas purification system and device thereof

A flue gas purification system and flue gas technology are applied in the directions of combined devices, gas treatment, chemical instruments and methods, etc., which can solve the problems of high operating costs, incomplete functions of the flue gas purification process, and large investment, so as to save equipment occupation. Space, avoid the effect of easy error, wide range of flue gas

Inactive Publication Date: 2021-06-22
瀚蓝(惠安)固废处理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the stricter emission standards, the flue gas purification facilities after incineration can no longer meet the latest environmental protection standards, and the existing flue gas purification process has incomplete functions, large investment, and high operating costs. Based on this, it needs to be adapted In addition to the incineration process, the most critical thing is to transform the flue gas purification system to ensure that the flue gas emitted by it can meet the requirements of relevant emission standards

Method used

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  • Flue gas purification system and device thereof
  • Flue gas purification system and device thereof

Examples

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Embodiment 1

[0042] A flue gas purification system, the flue gas purification system comprises the following steps:

[0043] Step one, remove the particulate matter in the flue gas.

[0044] Specifically, in view of the actual situation that the content of zinc oxide and nickel oxide in the dust is relatively high, in order to prevent the dust from mixing with the deacidified gypsum, resulting in excessive heavy metal content in the deacidified gypsum, the mixed flue gas needs to be deacidified before the dust is deacidified. Dust removal, the working principle of wet electrostatic dust removal technology is to spray water mist to the dust collecting plate that is energized. Under the action of the discharge electrode, the water mist forms a strong corona, which is further atomized after the action of electric charges in the field. Among them, the electric field force and The collision, interception and adsorption of the charged water mist together collect the particles, and finally reach th...

Embodiment 2

[0061] A flue gas purification device, the flue gas purification device comprising:

[0062] An electrostatic precipitator, which includes a quench tower and a wet electrostatic precipitator, is used to cool down the mixed flue gas and remove particulate matter in the mixed flue gas;

[0063] A flue gas deacidification device, which includes a reaction tower and a waste collection bin, the waste collection bin is installed at the bottom of the reaction tower for removing acidic substances in the flue gas;

[0064] Activated carbon adsorption device, which includes activated carbon injection device and slaked lime injection device, is used to inject activated carbon into the flue gas pipeline to remove heavy metals, dioxins and sulfides in the flue gas;

[0065] Bag dust removal device, which is used to remove dust and activated carbon particles in the flue gas by using a bag filter;

[0066] A denitrification device, which includes a reactor and an air flow uniform distributi...

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Abstract

The invention provides a flue gas purification system and a device thereof. The flue gas purification system comprises the following steps: removing particulate matters in flue gas; removing acidic substances in the flue gas; spraying activated carbon into the flue gas pipeline; removing smoke dust and activated carbon particles in the flue gas by using a bag-type dust collector; removing nitrate in the flue gas; using the flue gas emission continuous monitoring system for monitoring the treated flue gas, and discharging the flue gas after reaching the standard; the flue gas emission continuous monitoring system is arranged, real-time monitoring of pollutant emission is achieved, the real-time performance and the accuracy of a monitoring result are improved, a semi-dry method deacidification technology is arranged, the flue gas application range is wide, treatment is more thorough, deacidification wastewater does not need to be treated, the low-temperature SCR technology is arranged, the treatment cost is low, the overhaul cost is lower, and the occupied space of equipment is saved.

Description

technical field [0001] The invention relates to the technical field of industrial pollution treatment, in particular to a flue gas purification system and device. Background technique [0002] Flue gas purification system, as an indispensable environmental protection auxiliary machine for waste incineration projects, develops rapidly along with waste incineration projects, and the process technology changes faster. There are simple dry method, circulating fluidized bed (CFB) modified semi-dry method, rotary spray semi-dry method (SDA), wet process, etc.; the denitrification process includes selective non-catalytic reduction (SNCR) process and SCR process etc., are all mature processes that are being applied in actual engineering, and some new process technologies are also being developed and piloted. Generally speaking, these process technologies are developing from simple to complex, from inefficient to efficient. [0003] The stricter emission standards have promoted the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50B01D53/44B01D53/68B01D50/00B01D53/10B01D53/86B01D53/56
CPCB01D50/00B01D53/10B01D53/44B01D53/502B01D53/68B01D53/8625B01D2251/2062B01D2251/404B01D2251/604B01D2253/104B01D2257/60B01D2257/70B01D2258/0283
Inventor 孙清阳林志伟王玉龙彭真李伟胡小满王强
Owner 瀚蓝(惠安)固废处理有限公司